A British politician (David Morrissey) is submerged in scandal after his assistant-with whom he was having an affair-turns up dead in the London Underground. When the journalist (John Simm) who was the politico's former campaign manager begins looking into the suspicious death, the case is made even more complicated by the grim fate of a teen drug dealer. Gripping series from the BBC co-stars Kelly Macdonald, Bill Nighy. <> Widescreen (Enhanced); Soundtrack: English Dolby Digital stereo; Subtitles: English; audio commentary on selected episodes. 6 episodes on 2 discs. 5 3/4 hrs.